Flushing cistern



C. E. PAGE ET AL.

FLUSHING CISTERN Nov. 41 1924. 1,514,568

Filed July 5, 1923 6 i 5 Fm;

INVENToRs FI E Ca//esEPaye v .TTOR

Til

Patented Nov. 4, 1924.

narran srAras CHARLES ERNEST PAGE, JACK FINDLAY PAGE, rAND CHARLES NORMAN PAGE, F

iifit PATENT @iiig CHRISTCHURCII, NEW ZEALAND.

FLUSI-IING CISTERN.

Application filed July 5,

- vice for water-closets and the like, the object of the invention being to provide a novel, simple and reliable device of this nature which will be silent in action and wherein the release of the water from the cistern will be effected by the opening of a valve or plug which may be positioned close to the basin in order to minimize noise.

In order that thefnature of the invention may be clearly understood, it will now be explained with reference to the accompany-v ing drawings in which Fig. l is a sectional elevation of a cistern equipped in accordance with the present invention, the positions of the parts when the valve is closed being sho-wn in full lines while the positions of such parts when the valve is open being indicated in dotted lines, and,

Fig. 2 is a plan view of such cistern.

l is a containing vessel or cistern provided with a ball-cock 2l or other appropriate means whereby water is admitted to fill such cistern to a suitable level Ias represented by the line A-A, such cistern being connected with the basin by means of a flush-pipe 3.

In order to intercept the flow of water from such cistern down the flush-pipe, there is provided a valve or plugfi adapted to close upon a suitable seat 5. In the case of a cistern arranged at a height above the basin and connecting withthe latter by means ofa long` Hush-'pipe the said valve 4 and its' seat 5 will preferably be arranged in the lower portion of such flush-pipe, in order to be near the basin. In the case of a cistern which is itself intended to be mounted low down or as near as practicable to the basin, thus reducing the flush-pipe to virtually a bend or short connection between such cistern and basin, the said valve and its seat 1923. Serial No. 649,623.

by lifting it from its seat for which purpose such valve is provided with an upwardly extending wire or connection (i.

According to the present invention for theL purpose of controlling the opening and closing of the valve there is provided within the cistern l, and suitably fulcrumed as upon a horizontal axis 7, a bell-crank lever one arm 8 of which is adapted normally to extend in a horizontal or virtually horizontal direction and to which arm is attached` the connection 6.

The other arm 9 of the lever is adapted, when the latter occupies 4its said normal position, to eXtend upwardly in an approxi mately vertical direction from its said ful-v crurn and is provided with a suitable weight l0, while attached to the horizontal arm 8 is a body 11 composed of metal or other suitable' material and which is preferably made hollow in order that its weight may be adjusted by filling it to the required extent with water or other appropriate substance. The arrangement is such that when the cistern is filled with water and the said lever occupies its said normal position, as here shown infull lines, the valve 4L will be closed upon its seat 5 while the weight l() and body 1l will exercise no effective action to turn the lever which latter will in consequence remain at rest.

When a flush is desired however, the lever willv be turned manually into the position shown in dotted lines thereby raising the valve and so permitting the water to be discharged down the yflush-pipe. When the lever is in this position the upward arm 9 will lieat an angle to the vertical thereby placing its said weight lOin such a position as to exert a control inmaintaining1 the lever in this position when the manual operation is relaxed or removed.

f This control of the lever by the weight l0 is opposed by the body 11y .upon the other` arm but the weight of such body while submerged in the. water is insuiiicient to overil i) rlhis condition of affairs will therefore continue until the Waterd'evel in the cistern has been lowered to a point such as that represented by the line B--B at which the body 11 Will be partly or Wholly uncovered.

lVhen this takes place the body 11 in consequence of the loss or reduction of its buoyant support by the Water, will have its effective Weight increased to such an extent as to successfully oppose the control of the Weight 10 and thus return the lever to its previous or full-line position thereby permitting the valve dto again close upon kits seat 5.

vSuitable means ot manipulation will be provided or enabling the said man-ual turning o'f the lever into its valve-opening position to be effected. ills here shown such means consist of a rod 12 disposed in a sub- .stantially horizontal .direction and slideable through an opening or bush in one of the Walls ot' the cistern, the inner end ofsuch rod being` operatively connected With the arm 9 of the lever While theouter or reverse end of such rod is provided With a suitable knob or button 13 adapted to receive a pressure from the thumb or fingers of the operator.

As previously lmentioned the admission of the Water to the oistern is governed by means of a ball-cock 2. ln order toy prevent the arm 14; of such lball-cock from sinking so far as to foul the arm 8 of the lever or any parts connected therewith, there isl-provided a limiting stop consisting of a rod 15 .eX-

tending horizontally across the interior of the cistern and at such a position as to receive and supportthe said arm 14C when the latter sinks in consequence of the reduction of the Water level in the cistern occasioned by the flush as already explained.I

ln order to provide a simpleffand convenient means for fulcruming the said belflcrank lever, upon the inner surface of the two side walls of the cistern are formed a pair of inwardly projecting` lcl-sliaped flanges the bell crank extending in a substan tially horizontal plane, means operatively connecting the horizontal arm of the lever with the aforesaid discharge valve, a weight carried by the vertical arm or' the lever to maintain said leve-r in valve-opening position when moved thereto, a body carried by the horizontal arm of the lever arranged When submerged to ineli'ectively oppose said control of the lever by said Weight, but on becoming emerged to overcome said control and turn said lever to 'its valve lclosing position, and means for moving the lever to valve opening position `comprising a rodv mounted to slide through an opening .in the conta-ini ng vessel and equipped with handle means at its outer lend, stop means carried by an intermediate portion ot `the rod for engaging the inner Wall of the containing vessel, and a pivotal connection between the inner end of the rod and the Weighted arm of the lever.

2. A flushing cistern comprising a containing vessel a valve for admitting Water thereto, a pivotally mounted farm equipped at one end with a fioatlandhaving itsopposite end in operative engagement Awith said valve to control opening and clos-ingofrthe latter, a vvalve to govern the discharge of Water from said vessel, ya bell crank lever fulcrumed in said vessel. be turnable in a vertical plane and having one upward arm and one substantially horizontal arm, means operatively connecting said lever with the aforesaid discharge valve, manually operable means for ,turning said le-v ver into the position to open sai-d valve, a Weight upon said upward armv operating to maintain said Y`lever in `said yvalve open position, a body carried by .said yhorizontal arm and arranged when subkmerged to ineiectively oppose .said control of the lever by said Weight, but on becoming emergedto overcome said control and yturn said levergto its valve closing vposition and a stop arranged topbe engagedbythe 'iloat arm to prevent. the latter Vfrom sinking so ytar as'to oulzthe lever.

In Witness whereof, vWe have hereunto set our hands at Christchurch, New Zealand, ythis first day ot June, 1923.

CHARLES ERNEST PAG-E. JAC-K FINDLAY PAGE, CHARLES NORMAN PAGE. ln the .presence yol,-'

CYRIL CARLYN Conant, Sinner JAMES' TRELEAVEN. 

